We learned this today at i still can't get it right i'm so confused.

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is:

its line 2 i just added the rest or else it wouldn't let me answer

parallel lines have the same slope. so if the green line has a slope of -4, the slope of the red line is also -4.